00303    a2200109   4500020001500000082001500015100003100030245006500061260003300126300002000159650001400179  a9555890641  a001.4bSIL  aDe Silva, Ranjith Premalal  aGeo-informatics dictionarybgeographical information systems  aPeradeniyabPGIAc2003g2004  aiii,245p.c25cm  aKnowiedge